JP2000237102A - Vacuum cleaner mouthpiece - Google Patents

Abstract

(57) [Problem] To provide a traveling support means which does not generate rolling noise on a wooden board floor surface and does not damage the wooden board floor surface and has good traveling performance even on a carpet floor surface. A rolling wheel that rotates in the front-rear direction in traveling support means provided at both ends in a width direction of a front edge portion and a rear edge portion of a bottom surface of a suction base is made of a soft member. It was constituted by covering with a certain raised member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a suction port of a vacuum cleaner.

[0002]

2. Description of the Related Art A suction-type vacuum cleaner basically has a structure in which the suction force of an electric blower is transmitted to a suction opening formed in the bottom surface of a suction base of a suction opening to suck and collect dust on the floor together with air. It is.

A brush chamber is provided at the back of the suction opening at the suction opening, and the floor surface is rubbed with a rotating brush provided in the brush chamber so as to protrude from the suction opening, so that dust on the floor surface is raised. To increase the efficiency of dust absorption.

[0004] In order to move the bottom surface of such a vacuum cleaner along the floor surface, a rolling wheel or a sliding member is provided on the bottom surface as travel support means.

[0005]

Since the rolling wheel uses a rolling member made of a relatively hard plastic molded product, when the rolling wheel is brought into contact with a wooden board floor and rolled,
There is a problem of generating rolling noise and damaging the floor surface. In addition, since the fitting gap between the rolling wheel and the support shaft and the mounting gap between the support shafts are relatively large, when the suction port is placed on the floor surface or lifted, the relative movement of these parts causes a collision of parts. A sound is generated.

[0006] In general, a raised member is used for the sliding member. However, when the sliding member is brought into contact with the carpet floor surface and is slid, the sliding resistance is increased and the traveling property is reduced.

[0007] Accordingly, an object of the present invention is to provide a vacuum cleaner which does not generate rolling noise or damage the wooden board floor and has good running properties even on the carpet floor. Is to provide.

Another object of the present invention is to reduce a component collision sound generated by a relative movement of components constituting the travel support means when the suction port is placed on the floor or lifted.

It is still another object of the present invention to improve the dust suction efficiency of the suction port of the vacuum cleaner.

[0010]

SUMMARY OF THE INVENTION The present invention provides a vacuum cleaner provided with running support means provided with rolling wheels rotating in the front-rear direction at both ends in the width direction of a front edge portion of a bottom surface of a suction base and a rear edge portion. In the suction port, by forming the rolling wheel of the leading edge traveling support means by covering the surface of the rolling member with a soft member, it does not generate rolling noise on the wooden board floor surface, does not damage, In addition, it is intended to improve running performance even on a carpet floor surface.

The soft member covering the rolling member is a raised member which is raised so as to be inclined and rises inward in the width direction of the suction port, so that when the suction port is moved in the width direction, dust is collected by the raised member. To be able to inhale.

[0012] Further, auxiliary running support means provided with rolling wheels rotating in the width direction are also provided outside the widthwise direction of the trailing edge running support means, and the rolling wheels of the auxiliary running support means also cover the surface of the rolling member. By covering the wooden board floor with the soft member, it is possible to prevent the rolling noise from being generated or damaged on the wooden board floor. This auxiliary traveling support means is provided so that the rolling wheels advance and retreat with respect to the bottom surface of the suction base, and when the suction mouth is to be moved in the width direction, it is brought into contact with the floor surface to reduce the movement resistance. I do.

The soft member that covers the surface of the rolling member of the auxiliary traveling support means is also a raised member.

The present invention also relates to a suction port of a vacuum cleaner provided with running support means at widthwise ends of front and rear edges of a bottom surface of a suction base, wherein the front edge running support means includes a surface of a rolling member. The rolling wheel is provided with a soft sliding member on the top of the spherical sliding surface of the spherical sliding member having a spherical sliding surface formed of a slippery material. And the spherical sliding member is attached to the suction base so that the spherical sliding surface faces downward and can be swung elastically.

[0015] The trailing edge running support means is such that a soft sliding member abuts on the wooden board floor and slides, and a spherical sliding surface of the spherical sliding member contacts the carpet floor. Swing to make contact and slide.

Also in this mouthpiece, the soft member is a raised member that rises so as to be inclined inward. The soft sliding member is a raised member.

In the rolling member, the shaft and the body are integrally formed, and the shaft is rotatably mounted to reduce the gap between the components and reduce the collision noise. Let it.

[0018]

1 to 6 show a first embodiment of a suction port of a vacuum cleaner according to the present invention. FIGS. 1 and 2 are longitudinal side views of a suction port in the first embodiment, and FIG. 1 shows a state where an extension pipe joint is horizontally lowered.
FIG. 2 shows a state in which the extension pipe joint is upright. FIG. 3 is a bottom view of the suction opening. 4 to 6 show the rolling wheels. FIG. 4 is a perspective view of the rolling wheels in which the surface of the rolling members is covered with a raised member which is a soft member, and FIG. 5 is a front view of the rolling wheels showing a raised state. FIG. 6 and FIG. 6 are perspective views showing the mounted state of the rolling wheels.

The suction opening 1b is provided at a lower portion of the rotary brush 2 rotatably housed in a horizontally long brush chamber 1a formed in the front side of the suction base 1 and extending in the width (lateral) direction.
Slightly outside. The upper side of the brush chamber 1a is covered with a removable mouth cover 3.

The rotating brush 2 is formed by spirally arranging a plurality of brushes on the outer periphery of a rotating shaft on which chemical fibers such as nylon or animal hair such as pigs are erected. The brush is made waterproof by performing a water-repellent treatment.

The rotary brush 2 has an air turbine impeller 4 fitted to an end of a rotary shaft, and generates rotational force on the air turbine impeller 4 by using suction air to be driven to rotate. .

An extension pipe joint 1c is provided on the rear side of the suction base 1 at a central portion in the horizontal (width) direction so as to project upward and downward from a horizontal state to a vertical state. Attach the joint pipe 5 if possible. The joint pipe 5 has its distal end opened into the room 1d of the extension pipe joint portion 1c. An extension pipe connecting pipe 6 is connected to the rear end of the joint pipe 5 so as to be swingable in a range of 180 degrees in the horizontal (width) direction. The extension pipe joint portion chamber 1d and the brush chamber 1a communicate with each other through a communication passage 1e.

The suction force generated by the cleaner body is applied to the connection hose, the extension pipe (not shown), the extension pipe connection pipe 6 and the joint pipe 5.
To the extension pipe joint portion chamber 1d through the communication passage 1e.
, The dust-containing air in the brush chamber 1a is sucked, and the air acting on the air turbine impeller 4 is sucked to generate a rotational force in the impeller 4.

A suction opening 1 is provided on the bottom surface of the suction base 1.
The suction regulating blades 7a and 7b are attached to the front and rear positions of b in parallel with the suction opening 1b so as to hang down so that their tips lightly contact the floor surface.

Further, on the bottom surface of the suction base 1, there are provided front edge running support means 8, 9 which rotate in the front-rear direction so as to be located on both outer sides of the suction regulating blade 7a on the front edge side, and protrude to the rear side. The trailing edge running support means 10 which rotates in the front-rear direction so as to be located at the center in the width direction of the trailing edge of the extended pipe joint 1c is further provided so as to be located at the base of the extended pipe joint 1c. Auxiliary running support means 11 and 12 that rotate in the lateral direction are provided. When the suction port is moved along the floor surface, the rolling wheels support the load of the suction port to roll the floor surface to reduce the running resistance and to reduce the running resistance. It functions so as to secure a predetermined face-to-face relationship.

As shown in FIGS. 4 and 5, the rolling wheel 8a of the front edge running support means 8 is formed by a soft member formed by integrating a shaft 8b and a body 8c. As shown in FIG. 6, the shaft portion 8b is fitted to a pair of bearing projections 1f formed upright on the bottom surface of the suction base 1 so as to detachably clamp the shaft portion 8b. And rotatably mounted and supported. Soft member 8d
The raised member is in a raised state in which the raised member tilts inward in the width (lateral) direction of the suction port and rises. The soft member 8d can also be formed by electrostatic flocking on the surface of the trunk 8c. The other front edge traveling support means 9 is similarly configured.

The trailing edge travel support means 10 is constructed in the same manner as the front edge travel support means 8 and 9, although detailed illustration is omitted. The rolling wheel is formed by covering the surface of a body portion of a rolling member in which a shaft portion and a longer body portion are integrated with a raised member, which is a soft member, and formed to stand on the bottom surface of the suction base 1. The shaft part is fitted so as to be detachably clamped and rotatably mounted.

It is preferable that the body of each rolling member is formed in a drum-shaped shape with a thick central portion so as to be easy to skid.

The auxiliary running support means 11 has the same configuration as the rolling wheels of the front edge running support means 8 and 9 described above. The auxiliary traveling support means 11 supports the rolling wheel 11a by being fitted to a bearing groove formed in a rolling wheel mounting lever 11e rotatably mounted in the extension pipe joint portion chamber 1d so as to rotatably clamp the shaft portion. Then, by rolling the rolling wheel mounting lever 11e, the rolling wheel 11a is advanced and retracted from the rolling wheel advance / retreat window 1g formed on the bottom surface of the suction base 1.

The rolling wheel mounting lever 11e is urged by a retreat spring 11f so as to rise up in the extension pipe joint portion chamber 1d, thereby retreating the rolling wheel 11a from the rolling wheel advance / retreat window 1g to thereby extend the extension pipe joint portion chamber. 1d (state shown in FIG. 1). And the joint pipe 5
In the state where the cam 5a interlocking with the up and down rotation of the joint tube 5 is provided and the joint pipe 5 is erected substantially vertically, the rolling wheel mounting lever 11
e is lowered by the cam 5a against the reversing spring 11f, the rolling wheel 11a is advanced toward the floor from the rolling wheel advance / retreat window 1g, and is brought into contact with the floor, thereby lifting the suction base 1 and rear running support means. 10 is caused to float from the floor (the state shown in FIG. 2). The other auxiliary driving support means 12 is similarly configured.

The suction port of such a vacuum cleaner is used by connecting an extension pipe connected to the main body of the vacuum cleaner to the extension pipe connecting pipe 6 so that the suction force generated in the main body of the vacuum cleaner can be used for the extension pipe joint section of the suction port. 1d, the air acting on the brush chamber 1a and the air turbine impeller 4 is sucked, and the dust is sucked together with the air from the suction opening 1b. Then, when the air turbine impeller 4 rotates, the rotating brush 2 rotates and rubs the floor surface, so that the dust adhering to the floor surface floats and the dust absorbing efficiency is improved.

When cleaning a wide floor, the suction port is moved in the front-rear direction. Such a suction opening travel operation is performed by gripping the extension pipe while the extension pipe is tilted obliquely, so that the cam 5a releases the rolling wheel mounting lever 11e of the auxiliary traveling support means 11, 12. Therefore, since the rolling wheel mounting lever 11e urged by the retreat spring 11f rises in the extension pipe joint portion chamber 1d, the rolling wheel 11a separates from the floor surface and fits in the extension pipe joint portion chamber 1d from the wheel advance / retreat window 1g. As described above, the rolling wheels of the front edge running support means 8 and 9 and the rear edge running support means 10 roll in contact with the floor surface to reduce the running resistance of the suction opening in the front-rear direction.

Since each rolling wheel is covered with a raised member, which is a soft member 8d, like the rolling wheel 8a shown in the drawing, no rolling noise is generated even when rolling on a wooden board floor. Also, it does not damage the floor. Since the rolling wheel rolls also on the carpet floor, an increase in running resistance of the suction opening is reduced.

Further, since each rolling wheel uses a rolling member in which a shaft portion and a body portion are integrated, a component collision caused by relative movement of components when the suction port is placed on the floor surface or lifted. Sound is reduced.

In a use state in which the suction port is run in the width (horizontal) direction, the extension pipe is vertically erected to bring the joint pipe 5 into a substantially vertically erected state, and the auxiliary traveling support means 1 is provided.
The first and second rolling wheel mounting levers 11e are lowered by the cam 5a against the reversing spring 11f, and the rolling wheels 11a are lowered.
Is moved forward from the rolling wheel advance / retreat window 1g toward the floor surface, and comes into contact with the floor surface to lift the suction base 1 so that the trailing edge portion travel support means 10 floats from the floor surface (shown in FIG. 2). Status). In this state, the suction opening is supported by the auxiliary traveling support means 11 and 12, and the traveling direction is easily increased.
Therefore, the rolling wheels of the auxiliary running support means 11 and 12 are rolled by turning the extension pipe connecting pipe 6 obliquely in the horizontal direction and pushing or pulling the extension pipe in the horizontal direction. Thereby, the lateral running resistance of the suction port is reduced, and the operation is facilitated. At this time, the front edge traveling support means 8, 9
Each of the rolling wheels moves axially and slides on the floor.

The raised portion of the soft member covering the surfaces of the rolling wheels of the front edge running support means 8 and 9 is tilted and raised so as to face the widthwise inside of the suction base 1, and is thus rolled up. When the driving wheel is slid, dust on the floor surface is raked up by the raising, and the suction opening 1b is drawn from the outer periphery of the bottom surface of the suction base 1.
The air is sucked into the suction opening 1b on the suction air flowing along the bottom surface toward the bottom.

In particular, the suction opening is formed by denting the bottom surface of the suction base 1 around the mounting portion of the front edge traveling support means 8, 9 located on both outer sides of the suction regulating blade 7a on the front edge side of the suction base 1. By forming a suction air passage that extends from 1b to the outer peripheral edge of the suction base 1, the rolling wheels of the front edge traveling support means 8, 9 are positioned so as to protrude into the suction air passage. By moving the suction opening in the lateral direction, the dust collected by the raised brushes inclined inward to the rolling wheels sliding on the floor surface is efficiently moved into the suction opening 1b by the suction air flowing through the suction air passage. You will be able to inhale.

Therefore, by moving the front edge of the suction opening along the side of the wall in the horizontal direction, it is possible to efficiently clean up to the side of the wall.

7 to 10 show a second embodiment of the suction port of the vacuum cleaner according to the present invention. FIG. 7 is a bottom view of the mouthpiece according to the second embodiment. 8 to 10
Fig. 8 shows a bottom view, Fig. 9 shows a vertical side view, Fig. 10 shows a wooden board floor running state explanatory view (a) and a carpet floor running state explanatory view ( b). Components corresponding to the components of the suction opening in the first embodiment described above are denoted by the same reference numerals, and redundant description will be omitted, or illustration will be omitted.

The suction openings are mounted on the bottom surface of the suction base 1 to assist in reducing the running resistance of the suction base 1. As in the first embodiment, a rolling wheel whose surface is covered with a soft member is used. The trailing edge running support means 13 and 14 at both ends of the trailing edge include a spherical sliding member 13a having a hemispherical sliding surface formed of a slippery material;
A soft sliding member 13b provided at the top of a hemispherical sliding surface of the spherical sliding member 13a;
Is constituted by an elastic member 13c and a fixture 13d which are attached to the bottom surface of the suction base 1 so that the hemispherical sliding surface can face downward and can be swung elastically. Spherical sliding member 13a
Is mounted on the elastic member 13c so that the sliding surface moves along a substantially concentric trajectory, and the supporting height of the suction base 1 fluctuates due to the swing operation of the spherical sliding member 13a. To reduce

A raised member such as felt is used for the soft sliding member 13b, and rubber or a spring is used for the elastic member 13c. The attachment 13d is fixed by bonding or screwing so as to stand on the bottom surface of the suction base 1.

When such a mouthpiece is run on a wooden board floor, the trailing edge running support means 13 and 14 are provided by the rear edge running support means 13 and 14 shown in FIG.
As shown in (a), the soft sliding member 13b provided on the top of the hemispherical sliding surface of the spherical sliding member 13a slides on the floor surface with a small sliding resistance to assist the traveling. However, when traveling on the carpet floor, the soft sliding member 13
As shown in FIG. 10B, the elastic member 13c is bent and the spherical sliding member 1
Since the hemispherical sliding surface that is slippery when the 3a swings is inclined so as to slide on the floor, an increase in sliding (running) resistance is suppressed. In addition, since the spherical sliding member 13a performs a swing such that the hemispherical sliding surface moves along a substantially concentric trajectory, the swing operation of the spherical sliding member 13a causes the suction base 1 to move. Suppress the fluctuation of the support height.

[0043]

According to the present invention, the surface of the rolling member is covered with a soft member by covering the rolling wheel rotating in the front-rear direction of the front edge traveling support means provided at both ends in the width direction of the front edge of the bottom surface of the suction base. With this configuration, it is possible to provide a vacuum cleaner having good running performance on the carpet floor surface without generating or damaging rolling noise on the wooden board floor surface.

Further, according to the present invention, the shaft portion of the rolling wheel, which is constituted by covering the surface of the body portion with a soft member in the rolling member in which the shaft portion and the body portion are integrated, is rotatably mounted. In addition, when the suction port is placed on the floor or lifted, component collision noise generated by the relative movement of the components can be reduced.

Further, according to the present invention, the soft member constituting the surface of the rolling wheel is formed as a raised member so as to be inclined inward, so that when the suction opening is moved in the width direction, the suction member slides to collect dust. The dust can be sucked into the suction opening to improve the dust suction efficiency.

Further, according to the present invention, a soft sliding member is provided on the top of a spherical sliding surface of a spherical sliding member having a spherical sliding surface formed of a slippery material, and the spherical sliding surface is directed downward. By attaching it to the suction base so that it can be swung elastically and as a trailing edge running support means, it does not generate rolling noise on the wooden board floor surface, does not damage it, and also against the carpet floor surface It can also be used as a suction port of a vacuum cleaner having good running properties.

[Brief description of the drawings]

FIG. 1 is a vertical side view of a suction port of a vacuum cleaner according to a first embodiment of the present invention, showing a state in which an extension pipe joint is horizontally lowered.

FIG. 2 is a vertical sectional side view of a suction port of the vacuum cleaner according to the first embodiment of the present invention, showing a state where an extension pipe joint is upright.

FIG. 3 is a bottom view of a suction port of the vacuum cleaner according to the first embodiment of the present invention.

FIG. 4 is a perspective view of a rolling wheel of the traveling support means in the first embodiment.

FIG. 5 is a front view showing the raised state of the rolling wheels of the driving support means in the first embodiment.

FIG. 6 is a perspective view showing a state in which rolling support wheels are attached to the traveling support means in the first embodiment.

FIG. 7 is a bottom view of a suction opening of the vacuum cleaner according to the second embodiment of the present invention.

FIG. 8 is a bottom view of the driving support means according to the second embodiment.

FIG. 9 is a longitudinal sectional side view of a driving support unit according to a second embodiment.

FIG. 10A is a diagram for explaining a traveling state of a wooden board floor surface of the traveling support means in the second embodiment, and FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Suction base, 1a ... Brush chamber, 1b ... Suction opening, 2 ... Rotary brush, 4 ... Air turbine impeller, 8,
9: Front edge traveling support means, 8a: Rolling wheel, 8b: Shaft,
8c: trunk, 8d: soft member, 10: trailing edge running support means.

Claims (9)

[Claims] 1. A front edge portion of a vacuum cleaner, wherein a suction assist device provided with running support means provided with rolling wheels rotating in the front-rear direction at both ends in a width direction of a front edge portion of a bottom surface of the suction base and a rear edge portion thereof. The suction wheel of the vacuum cleaner, wherein the rolling wheel of the support means is formed by covering the surface of the rolling member with a soft member. 2. The suction port of a vacuum cleaner according to claim 1, wherein the soft member covering the rolling member is a raised member that is raised so as to be inclined upright in the width direction of the suction port. 3. An auxiliary traveling support means provided with a rolling wheel rotating in the width direction on the outside in the width direction of the trailing edge traveling supporting means, wherein the rolling wheel of the auxiliary traveling support means also rolls. An inlet for a vacuum cleaner, wherein a surface of the member is covered with a soft member. 4. The suction port of a vacuum cleaner according to claim 3, wherein said auxiliary traveling support means is provided so as to advance and retreat the rolling wheel with respect to a bottom surface of the suction port base. 5. A vacuum cleaner according to claim 3, wherein the soft member covering the surface of the rolling member of the auxiliary traveling support means is a brushed member. 6. A suction opening of a vacuum cleaner provided with running support means at widthwise ends of front and rear edges of a bottom surface of a suction base, wherein the front edge running support means covers a surface of a rolling member with a soft member. The trailing edge traveling support means includes a spherical sliding member having a spherical sliding surface formed of a slippery material, and a soft member provided on a top portion of the spherical sliding surface of the spherical sliding surface. A suction port for a vacuum cleaner, comprising a sliding member, wherein the spherical sliding member is attached to a suction base so that the spherical sliding surface faces downward and can be swung elastically. 7. The suction port of a vacuum cleaner according to claim 6, wherein the soft member is a raised member that stands up so as to be inclined inward. 8. The soft sliding member according to claim 6, wherein:
An inlet for a vacuum cleaner, wherein the inlet is a brushed member. 9. An electric cleaning apparatus according to claim 1, wherein said rolling member has a shaft portion and a body portion integrally formed, and said shaft portion is rotatably mounted. Suction mouth of machine.